34815661 has 2 divisors, whose sum is σ = 34815662. Its totient is φ = 34815660.

The previous prime is 34815607. The next prime is 34815667. The reversal of 34815661 is 16651843.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19527561 + 15288100 = 4419^2 + 3910^2 .

It is a cyclic number.

It is not a de Polignac number, because 34815661 - 2¹¹ = 34813613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34815667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17407830 + 17407831.

It is an arithmetic number, because the mean of its divisors is an integer number (17407831).

Almost surely, 2^34815661 is an apocalyptic number.

It is an amenable number.

34815661 is a deficient number, since it is larger than the sum of its proper divisors (1).

34815661 is an equidigital number, since it uses as much as digits as its factorization.

34815661 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17280, while the sum is 34.

The square root of 34815661 is about 5900.4797262596. The cubic root of 34815661 is about 326.5313483452.

The spelling of 34815661 in words is "thirty-four million, eight hundred fifteen thousand, six hundred sixty-one".